doc: add default bitcoin.conf locations
doc: add default bitcoin.conf locations

Added default bitcoin.conf data directories and paths
Added example bitcoin.conf link

rnicoll/dogecoin,ahmedbodi/vertcoin,andreaskern/bitcoin,CryptArc/bitcoin,AkioNak/bitcoin,lateminer/bitcoin,pataquets/namecoin-core,bitcoin/bitcoin,JeremyRubin/bitcoin,rnicoll/dogecoin,EthanHeilman/bitcoin,fanquake/bitcoin,monacoinproject/monacoin,EthanHeilman/bitcoin,jonasschnelli/bitcoin,domob1812/bitcoin,n1bor/bitcoin,wellenreiter01/Feathercoin,yenliangl/bitcoin,bitcoinsSG/bitcoin,jonasschnelli/bitcoin,namecoin/namecore,bitcoinsSG/bitcoin,ahmedbodi/vertcoin,DigitalPandacoin/pandacoin,ElementsProject/elements,tecnovert/particl-core,CryptArc/bitcoin,anditto/bitcoin,cdecker/bitcoin,jonasschnelli/bitcoin,peercoin/peercoin,bitcoinsSG/bitcoin,FeatherCoin/Feathercoin,ElementsProject/elements,dscotese/bitcoin,CryptArc/bitcoin,peercoin/peercoin,GroestlCoin/GroestlCoin,GroestlCoin/GroestlCoin,fujicoin/fujicoin,qtumproject/qtum,sstone/bitcoin,gjhiggins/vcoincore,DigitalPandacoin/pandacoin,MeshCollider/bitcoin,mruddy/bitcoin,pataquets/namecoin-core,FeatherCoin/Feathercoin,mruddy/bitcoin,achow101/bitcoin,n1bor/bitcoin,Sjors/bitcoin,alecalve/bitcoin,tjps/bitcoin,apoelstra/bitcoin,GroestlCoin/bitcoin,cdecker/bitcoin,GroestlCoin/bitcoin,GroestlCoin/GroestlCoin,mm-s/bitcoin,pstratem/bitcoin,prusnak/bitcoin,pataquets/namecoin-core,bitcoinknots/bitcoin,kallewoof/bitcoin,mm-s/bitcoin,FeatherCoin/Feathercoin,apoelstra/bitcoin,ahmedbodi/vertcoin,vertcoin/vertcoin,andreaskern/bitcoin,fanquake/bitcoin,achow101/bitcoin,monacoinproject/monacoin,ajtowns/bitcoin,sipsorcery/bitcoin,sipsorcery/bitcoin,n1bor/bitcoin,nikkitan/bitcoin,anditto/bitcoin,lateminer/bitcoin,jamesob/bitcoin,namecoin/namecoin-core,peercoin/peercoin,cdecker/bitcoin,lateminer/bitcoin,wellenreiter01/Feathercoin,n1bor/bitcoin,ajtowns/bitcoin,domob1812/namecore,tecnovert/particl-core,AkioNak/bitcoin,tecnovert/particl-core,jambolo/bitcoin,monacoinproject/monacoin,MeshCollider/bitcoin,namecoin/namecore,prusnak/bitcoin,DigitalPandacoin/pandacoin,MarcoFalke/bitcoin,litecoin-project/litecoin,prusnak/bitcoin,jtimon/bitcoin,apoelstra/bitcoin,ahmedbodi/vertcoin,jnewbery/bitcoin,dscotese/bitcoin,mruddy/bitcoin,jnewbery/bitcoin,andreaskern/bitcoin,DigitalPandacoin/pandacoin,fujicoin/fujicoin,rnicoll/dogecoin,jamesob/bitcoin,jamesob/bitcoin,peercoin/peercoin,instagibbs/bitcoin,jlopp/statoshi,ElementsProject/elements,prusnak/bitcoin,litecoin-project/litecoin,litecoin-project/litecoin,jambolo/bitcoin,andreaskern/bitcoin,monacoinproject/monacoin,kallewoof/bitcoin,mitchellcash/bitcoin,midnightmagic/bitcoin,MarcoFalke/bitcoin,practicalswift/bitcoin,domob1812/namecore,ElementsProject/elements,AkioNak/bitcoin,jamesob/bitcoin,domob1812/namecore,qtumproject/qtum,midnightmagic/bitcoin,alecalve/bitcoin,MeshCollider/bitcoin,wellenreiter01/Feathercoin,FeatherCoin/Feathercoin,dscotese/bitcoin,EthanHeilman/bitcoin,jlopp/statoshi,domob1812/bitcoin,CryptArc/bitcoin,anditto/bitcoin,qtumproject/qtum,Xekyo/bitcoin,prusnak/bitcoin,GroestlCoin/bitcoin,FeatherCoin/Feathercoin,jnewbery/bitcoin,vertcoin/vertcoin,JeremyRubin/bitcoin,yenliangl/bitcoin,bitcoin/bitcoin,jamesob/bitcoin,fujicoin/fujicoin,mm-s/bitcoin,rnicoll/dogecoin,domob1812/namecore,domob1812/bitcoin,midnightmagic/bitcoin,n1bor/bitcoin,namecoin/namecoin-core,pstratem/bitcoin,particl/particl-core,andreaskern/bitcoin,MarcoFalke/bitcoin,GroestlCoin/bitcoin,sstone/bitcoin,sstone/bitcoin,namecoin/namecore,jtimon/bitcoin,jambolo/bitcoin,JeremyRubin/bitcoin,jtimon/bitcoin,apoelstra/bitcoin,mruddy/bitcoin,alecalve/bitcoin,pataquets/namecoin-core,gjhiggins/vcoincore,particl/particl-core,EthanHeilman/bitcoin,wellenreiter01/Feathercoin,anditto/bitcoin,domob1812/namecore,particl/particl-core,achow101/bitcoin,bitcoin/bitcoin,rnicoll/bitcoin,vertcoin/vertcoin,qtumproject/qtum,fanquake/bitcoin,cdecker/bitcoin,jtimon/bitcoin,ajtowns/bitcoin,bitcoin/bitcoin,cdecker/bitcoin,bitcoinknots/bitcoin,mruddy/bitcoin,tjps/bitcoin,rnicoll/bitcoin,AkioNak/bitcoin,bitcoinsSG/bitcoin,GroestlCoin/GroestlCoin,achow101/bitcoin,bitcoinsSG/bitcoin,apoelstra/bitcoin,tjps/bitcoin,tecnovert/particl-core,jnewbery/bitcoin,namecoin/namecore,pstratem/bitcoin,jlopp/statoshi,anditto/bitcoin,midnightmagic/bitcoin,namecoin/namecoin-core,practicalswift/bitcoin,pstratem/bitcoin,namecoin/namecoin-core,qtumproject/qtum,jnewbery/bitcoin,peercoin/peercoin,jtimon/bitcoin,bitcoinknots/bitcoin,n1bor/bitcoin,ElementsProject/elements,jonasschnelli/bitcoin,jtimon/bitcoin,practicalswift/bitcoin,practicalswift/bitcoin,gjhiggins/vcoincore,EthanHeilman/bitcoin,instagibbs/bitcoin,namecoin/namecore,fujicoin/fujicoin,yenliangl/bitcoin,jamesob/bitcoin,JeremyRubin/bitcoin,Xekyo/bitcoin,litecoin-project/litecoin,pstratem/bitcoin,jambolo/bitcoin,ajtowns/bitcoin,litecoin-project/litecoin,GroestlCoin/bitcoin,Xekyo/bitcoin,mitchellcash/bitcoin,AkioNak/bitcoin,sstone/bitcoin,yenliangl/bitcoin,practicalswift/bitcoin,pstratem/bitcoin,qtumproject/qtum,monacoinproject/monacoin,tjps/bitcoin,rnicoll/bitcoin,sipsorcery/bitcoin,rnicoll/dogecoin,GroestlCoin/GroestlCoin,nikkitan/bitcoin,andreaskern/bitcoin,mm-s/bitcoin,kallewoof/bitcoin,tjps/bitcoin,wellenreiter01/Feathercoin,alecalve/bitcoin,bitcoinknots/bitcoin,mitchellcash/bitcoin,alecalve/bitcoin,bitcoin/bitcoin,tjps/bitcoin,mitchellcash/bitcoin,sstone/bitcoin,Sjors/bitcoin,pataquets/namecoin-core,monacoinproject/monacoin,mm-s/bitcoin,DigitalPandacoin/pandacoin,fanquake/bitcoin,CryptArc/bitcoin,mitchellcash/bitcoin,MarcoFalke/bitcoin,JeremyRubin/bitcoin,tecnovert/particl-core,gjhiggins/vcoincore,Xekyo/bitcoin,domob1812/namecore,sipsorcery/bitcoin,rnicoll/bitcoin,sipsorcery/bitcoin,fujicoin/fujicoin,midnightmagic/bitcoin,particl/particl-core,prusnak/bitcoin,kallewoof/bitcoin,jlopp/statoshi,MeshCollider/bitcoin,JeremyRubin/bitcoin,lateminer/bitcoin,rnicoll/bitcoin,ahmedbodi/vertcoin,particl/particl-core,domob1812/bitcoin,nikkitan/bitcoin,instagibbs/bitcoin,Sjors/bitcoin,namecoin/namecoin-core,MeshCollider/bitcoin,jlopp/statoshi,dscotese/bitcoin,jonasschnelli/bitcoin,EthanHeilman/bitcoin,achow101/bitcoin,domob1812/bitcoin,mm-s/bitcoin,ElementsProject/elements,gjhiggins/vcoincore,alecalve/bitcoin,fujicoin/fujicoin,DigitalPandacoin/pandacoin,bitcoin/bitcoin,CryptArc/bitcoin,kallewoof/bitcoin,yenliangl/bitcoin,qtumproject/qtum,mitchellcash/bitcoin,mruddy/bitcoin,cdecker/bitcoin,bitcoinsSG/bitcoin,nikkitan/bitcoin,pataquets/namecoin-core,bitcoinknots/bitcoin,litecoin-project/litecoin,ajtowns/bitcoin,tecnovert/particl-core,jambolo/bitcoin,FeatherCoin/Feathercoin,midnightmagic/bitcoin,GroestlCoin/GroestlCoin,nikkitan/bitcoin,apoelstra/bitcoin,sstone/bitcoin,namecoin/namecore,Xekyo/bitcoin,jambolo/bitcoin,Xekyo/bitcoin,MeshCollider/bitcoin,fanquake/bitcoin,achow101/bitcoin,instagibbs/bitcoin,namecoin/namecoin-core,kallewoof/bitcoin,anditto/bitcoin,GroestlCoin/bitcoin,AkioNak/bitcoin,dscotese/bitcoin,domob1812/bitcoin,jlopp/statoshi,vertcoin/vertcoin,particl/particl-core,nikkitan/bitcoin,vertcoin/vertcoin,instagibbs/bitcoin,Sjors/bitcoin,rnicoll/bitcoin,vertcoin/vertcoin,peercoin/peercoin,wellenreiter01/Feathercoin,dscotese/bitcoin,sipsorcery/bitcoin,fanquake/bitcoin,lateminer/bitcoin,gjhiggins/vcoincore,practicalswift/bitcoin,yenliangl/bitcoin,ahmedbodi/vertcoin,instagibbs/bitcoin,Sjors/bitcoin,ajtowns/bitcoin,lateminer/bitcoin,MarcoFalke/bitcoin,MarcoFalke/bitcoin